package com.mmall.common;


import org.codehaus.jackson.annotate.JsonIgnore;
import org.codehaus.jackson.map.annotate.JsonSerialize;

import java.io.Serializable;

/**
 * @Author: Czh
 * @Date: 2019/3/28  20:20
 * @Version: 1.0
 **/
@JsonSerialize(include = JsonSerialize.Inclusion.NON_NULL)
//保证序列化json的时候，如果是null的对象，key也会消失
public class ServerResponse<T> implements Serializable {

    private int status ;
    private String msg ;
    private T data;

    private ServerResponse(int status){
        this.status = status ;
    }

    private ServerResponse(int status , T data){
        this.status = status ;
        this.data   = data ;
    }

    private ServerResponse(int status , String msg , T data){
        this.status = status ;
        this.msg    = msg;
        this.data   = data ;
    }

    private ServerResponse(int status , String msg){
        this.status = status ;
        this.msg    = msg ;
    }
    @JsonIgnore
    //使之不再json序列化结果当中
    public boolean isSuccess(){
        return this.status == ResponseCode.SUCCESS.getCode();
    }

    public int getStatus(){
        return status;
    }

    public T getData(){
        return data;
    }
    public String getMsg(){
        return msg;
    }


    public static <T> ServerResponse<T> createBySuccess(){
        return new ServerResponse<T>(ResponseCode.SUCCESS.getCode());
    }

    public static <T> ServerResponse<T> createBySuccessMessage(String msg){
        return new ServerResponse<T>(ResponseCode.SUCCESS.getCode(),msg);
    }

    public static <T> ServerResponse<T> createBySuccess(T data){
        return new ServerResponse<T>(ResponseCode.SUCCESS.getCode(),data);
    }

    public static <T> ServerResponse<T> createBySuccess(String msg , T data){
        return new ServerResponse<T>(ResponseCode.SUCCESS.getCode(),msg ,data);
    }

    public static <T> ServerResponse<T> createByError(){
        return new ServerResponse<T>(ResponseCode.ERROR.getCode(),ResponseCode.ERROR.getDesc());
    }

    public static <T> ServerResponse<T> createByErrorMessage(String errorMessage){
        return new ServerResponse<T>(ResponseCode.ERROR.getCode() , errorMessage);
    }

    public static <T> ServerResponse<T> createByErrorCodeMessage(int errorCode , String errorMessage){
        return new ServerResponse<T>(errorCode , errorMessage);
    }

}
